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Mysql Pr19
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Mysql Pr19
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--
-- Database: `school_database`
--
-- --------------------------------------------------------
--
-- Table structure for table `absences`
--
DROP TABLE IF EXISTS `absences`;
CREATE TABLE IF NOT EXISTS `absences` (
`student_id` int(10) UNSIGNED NOT NULL,
`date` date NOT NULL,
PRIMARY KEY (`student_id`,`date`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- --------------------------------------------------------
--
-- Table structure for table `classes`
--
DROP TABLE IF EXISTS `classes`;
CREATE TABLE IF NOT EXISTS `classes` (
`name` varchar(30) NOT NULL,
`class_id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`class_id`)
) ENGINE=InnoDB AUTO_INCREMENT=15 DEFAULT CHARSET=utf8;
--
-- Dumping data for table `classes`
--
INSERT INTO `classes` (`name`, `class_id`) VALUES
('English', 1),
('Calculus', 7),
('Biology', 9),
('Chemistry', 10),
('Physics', 11),
('History', 12),
('Art', 13),
('Gym', 14);
-- --------------------------------------------------------
--
-- Table structure for table `scores`
--
DROP TABLE IF EXISTS `scores`;
CREATE TABLE IF NOT EXISTS `scores` (
`student_id` int(10) UNSIGNED NOT NULL,
`test_id` int(10) UNSIGNED NOT NULL,
`score` int(11) NOT NULL,
PRIMARY KEY (`test_id`,`student_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- --------------------------------------------------------
--
-- Table structure for table `students`
--
DROP TABLE IF EXISTS `students`;
CREATE TABLE IF NOT EXISTS `students` (
`first_name` varchar(30) NOT NULL,
`last_name` varchar(30) NOT NULL,
`email` varchar(60) DEFAULT NULL,
`street_name` varchar(30) NOT NULL,
`street_type` varchar(10) NOT NULL,
`city` varchar(40) NOT NULL,
`province` varchar(2) DEFAULT NULL,
`postal_code` varchar(8) NOT NULL,
`phone` varchar(20) NOT NULL,
`dob_day` int(11) NOT NULL,
`dob_month` varchar(10) NOT NULL,
`dob_year` int(11) NOT NULL,
`gender` enum('M','F','Oth') NOT NULL,
`date_entered` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`course` varchar(15) NOT NULL,
`student_id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`student_id`)
) ENGINE=InnoDB AUTO_INCREMENT=141 DEFAULT CHARSET=utf8;
--
-- Dumping data for table `students`
--
INSERT INTO `students` (`first_name`, `last_name`, `email`, `street_name`, `street_type`, `city`, `province`, `postal_code`, `phone`, `dob_day`, `dob_month`, `dob_year`, `gender`, `date_entered`, `course`, `student_id`) VALUES
('Aa', 'Aa', '[email protected]', 'Aaaa', 'Ave', 'Aaaa', 'AB', 'A1A 1A1', '(905) 111-1111', 1, 'JAN', 1990, 'M', '2016-06-09 20:24:35', 'PLF4M & IDP4U', 107),
('Zz', 'Zz', '[email protected]', 'Zzzz', 'Sq', 'Toronto', 'ON', 'L8J 3P9', '(905) 342-9983', 31, 'DEC', 2005, 'M', '2016-06-09 20:25:39', 'PAD2O1', 108),
('Bobby', 'Joester', '[email protected]', 'Ruralave', 'Pkwy', 'Oakville', 'ON', 'L9C 4B9', '(905) 728-2891', 14, 'AUG', 2004, 'Oth', '2016-06-09 23:39:37', 'PAD3O1', 112),
('Jane', 'Miller', '[email protected]', 'Treetop', 'Crcl', 'Lonetown', 'ON', 'L8D 3P9', '(905) 762-9103', 14, 'SEP', 1994, 'F', '2016-06-10 20:59:05', 'PAD2O1', 121),
('Denise', 'Stewart', '[email protected]', 'Municipality', 'Hts', 'Township', 'PE', 'L9C 4K6', '(905) 592-9172', 16, 'OCT', 1996, 'F', '2016-06-10 21:00:36', 'PAD3O1', 123),
('Cynthia', 'Brown', '[email protected]', 'Korner', 'Pl', 'Porous', 'PE', 'L7S 4H7', '(905) 592-9172', 16, 'OCT', 1996, 'F', '2016-06-10 21:01:51', 'PAD2O1', 124),
('Mark', 'Jones', '[email protected]', 'Wentworth', 'Crct', 'Urapean', 'ON', 'L9C 8Y9', '(905) 728-2891', 14, 'SEP', 2003, 'M', '2016-06-10 21:04:07', 'PAD3O1', 126),
('Ernest', 'Hemingway', '[email protected]', 'Writer', 'Sq', 'Hamilton', 'ON', 'L8J 3P9', '(905) 342-9983', 16, 'OCT', 2005, 'M', '2016-06-10 21:05:25', 'PAD2O1', 127),
('Mark', 'Twain', '[email protected]', 'Author', 'Dr', 'West-15th', 'AB', 'L9C 4B9', '(905) 574-1712', 14, 'OCT', 2003, 'M', '2016-06-10 21:06:00', 'PAD3O1', 128),
('Jane', 'Austen', '[email protected]', 'Block', 'Cres', 'Toronto', 'ON', 'L7C 4M8', '(905) 342-9983', 11, 'JAN', 2003, 'F', '2016-06-10 21:06:51', 'PAD3O1', 129),
('James', 'Markinham', '[email protected]', 'Just', 'Ave', 'Nowhere', 'ON', 'L8D 3P9', '(905) 762-9103', 17, 'SEP', 1996, 'M', '2016-06-10 21:11:09', 'PAD2O1', 131),
('Simeng', 'Yang', '[email protected]', 'Somewherest', 'Blvd', 'Hamilton', 'ON', 'L9C 4B9', '(905) 574-1712', 17, 'MAR', 1998, 'M', '2016-06-12 22:34:15', 'PAD3O1', 138);
-- --------------------------------------------------------
--
-- Table structure for table `tests`
--
DROP TABLE IF EXISTS `tests`;
CREATE TABLE IF NOT EXISTS `tests` (
`date` date NOT NULL,
`type` enum('T','Q') NOT NULL,
`maxscore` int(11) NOT NULL,
`class_id` int(10) UNSIGNED NOT NULL,
`test_id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`test_id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;
-- --------------------------------------------------------
--
-- Table structure for table `user_account`
--
DROP TABLE IF EXISTS `user_account`;
CREATE TABLE IF NOT EXISTS `user_account` (
`userID` int(9) NOT NULL AUTO_INCREMENT,
`userName` varchar(40) NOT NULL,
`pass` varchar(40) NOT NULL,
PRIMARY KEY (`userID`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
--
-- Dumping data for table `user_account`
--
INSERT INTO `user_account` (`userID`, `userName`, `pass`) VALUES
(1, 'root', 'password');
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- phpMyAdmin SQL Dump
-- version 4.5.2
--
-- Host: 127.0.0.1
-- Generation Time: Jun 13, 2016 at 12:08 AM
-- Server version: 5.7.12-log
-- PHP Version: 5.6.16
--
-- Author: Simeng Yang
-- https://github.com/simeng-yang/Student-Database-Management-System/blob/master/%5BExported%5D%20school_database.sql
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
mysql> select * from world.students;
+------------+-----------+---------------------+--------------+-------------+-----------+----------+-------------+----------------+---------+-----------+----------+--------+---------------------+---------------+------------+
| first_name | last_name | email | street_name | street_type | city | province | postal_code | phone | dob_day | dob_month | dob_year | gender | date_entered | course | student_id |
+------------+-----------+---------------------+--------------+-------------+-----------+----------+-------------+----------------+---------+-----------+----------+--------+---------------------+---------------+------------+
| Aa | Aa | [email protected] | Aaaa | Ave | Aaaa | AB | A1A 1A1 | (905) 111-1111 | 1 | JAN | 1990 | M | 2016-06-09 20:24:35 | PLF4M & IDP4U | 107 |
| Zz | Zz | [email protected] | Zzzz | Sq | Toronto | ON | L8J 3P9 | (905) 342-9983 | 31 | DEC | 2005 | M | 2016-06-09 20:25:39 | PAD2O1 | 108 |
| Bobby | Joester | [email protected] | Ruralave | Pkwy | Oakville | ON | L9C 4B9 | (905) 728-2891 | 14 | AUG | 2004 | Oth | 2016-06-09 23:39:37 | PAD3O1 | 112 |
| Jane | Miller | [email protected] | Treetop | Crcl | Lonetown | ON | L8D 3P9 | (905) 762-9103 | 14 | SEP | 1994 | F | 2016-06-10 20:59:05 | PAD2O1 | 121 |
| Denise | Stewart | [email protected] | Municipality | Hts | Township | PE | L9C 4K6 | (905) 592-9172 | 16 | OCT | 1996 | F | 2016-06-10 21:00:36 | PAD3O1 | 123 |
| Cynthia | Brown | [email protected] | Korner | Pl | Porous | PE | L7S 4H7 | (905) 592-9172 | 16 | OCT | 1996 | F | 2016-06-10 21:01:51 | PAD2O1 | 124 |
| Mark | Jones | [email protected] | Wentworth | Crct | Urapean | ON | L9C 8Y9 | (905) 728-2891 | 14 | SEP | 2003 | M | 2016-06-10 21:04:07 | PAD3O1 | 126 |
| Ernest | Hemingway | [email protected] | Writer | Sq | Hamilton | ON | L8J 3P9 | (905) 342-9983 | 16 | OCT | 2005 | M | 2016-06-10 21:05:25 | PAD2O1 | 127 |
| Mark | Twain | [email protected] | Author | Dr | West-15th | AB | L9C 4B9 | (905) 574-1712 | 14 | OCT | 2003 | M | 2016-06-10 21:06:00 | PAD3O1 | 128 |
| Jane | Austen | [email protected] | Block | Cres | Toronto | ON | L7C 4M8 | (905) 342-9983 | 11 | JAN | 2003 | F | 2016-06-10 21:06:51 | PAD3O1 | 129 |
| James | Markinham | [email protected] | Just | Ave | Nowhere | ON | L8D 3P9 | (905) 762-9103 | 17 | SEP | 1996 | M | 2016-06-10 21:11:09 | PAD2O1 | 131 |
| Simeng | Yang | [email protected] | Somewherest | Blvd | Hamilton | ON | L9C 4B9 | (905) 574-1712 | 17 | MAR | 1998 | M | 2016-06-12 22:34:15 | PAD3O1 | 138 |
+------------+-----------+---------------------+--------------+-------------+-----------+----------+-------------+----------------+---------+-----------+----------+--------+---------------------+---------------+------------+
12 rows in set (0.00 sec)
mysql>
mysql> select * from world.classes;
+-----------+----------+
| name | class_id |
+-----------+----------+
| English | 1 |
| Calculus | 7 |
| Biology | 9 |
| Chemistry | 10 |
| Physics | 11 |
| History | 12 |
| Art | 13 |
| Gym | 14 |
+-----------+----------+
8 rows in set (0.01 sec)
mysql>
查看sleep的进程
mysql> show full processlist;
mysql> show processlist;
mysql> show processlist;
+----+-----------------+-----------------+-------+---------+------+-----------------------------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+-----------------+-----------------+-------+---------+------+-----------------------------+------------------+
| 4 | event_scheduler | localhost | NULL | Daemon | 290 | Waiting for next activation | NULL |
| 44 | root | localhost:64750 | world | Sleep | 558 | | NULL |
| 45 | root | localhost:64751 | world | Sleep | 558 | | NULL |
| 53 | root | localhost:64967 | world | Query | 0 | starting | show processlist |
+----+-----------------+-----------------+-------+---------+------+-----------------------------+------------------+
4 rows in set (0.00 sec)
查询INNODB_TRX表，就没有阻塞的事务sleep线程存在了，如下所示：
mysql> SELECT * FROM information_schema.INNODB_TRX\G;
Empty set (0.00 sec)
我们就会发现，现在可以正常执行 sql 语句了
mysql> select * from world.user_login where pid =2 and login_time > "2016-11-11 11:11:11";
+-----+---------------------+
| pid | login_time |
+-----+---------------------+
| 2 | 2016-11-25 13:30:45 |
| 2 | 2016-11-24 13:30:45 |
| 2 | 2016-11-23 10:30:45 |
| 2 | 2016-11-22 09:30:45 |
| 2 | 2016-11-21 09:30:45 |
| 2 | 2016-11-20 09:30:45 |
| 2 | 2016-11-19 09:30:45 |
+-----+---------------------+
7 rows in set (0.01 sec)
mysql> select * from world.user_login where pid =2 and login_time < "2016-11-11 11:11:11";
+-----+---------------------+
| pid | login_time |
+-----+---------------------+
| 2 | 2016-11-02 09:30:45 |
| 2 | 2016-11-01 09:30:45 |
| 2 | 2016-10-31 09:30:45 |
| 2 | 2016-10-30 09:30:45 |
| 2 | 2016-10-29 09:30:45 |
+-----+---------------------+
5 rows in set (0.00 sec)
mysql> select * from world.user_login where pid =2 and login_time = "2016-11-11 11:11:11";
Empty set (0.00 sec)
mysql>
mysql> select * from world.user_login where pid =2 and login_time < "2016-10-29 11:11:11";
+-----+---------------------+
| pid | login_time |
+-----+---------------------+
| 2 | 2016-10-29 09:30:45 |
+-----+---------------------+
1 row in set (0.00 sec)
mysql>